1)The filtration material is made from non-woven fabrics, and the synthetic fiber;

2)The filtration material compounds with the material net, and is designed into the foldaway, which will provide the current air with the largest filtration area, 5 times filtration area as the common plane mesh. Paper frame and metal frame are available, which is convenient for replace.

3)The moisture-proof 100%;

4)Heat resistance 80º C

5)Filter class: F8

Using: Pre-filter for the air-condition filtration system. It can lengthen the working life of the middle and high efficiency filter.